Carton having a corner window



FIG. 1 is an isometric view of a carton having a corner window, showing my new design;

FIG. 2 is an end elevation thereof;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a side elevation thereof.

The broken lines showing on FIGS. 1-4 are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a carton having a corner window, as shown and described. 